Form4insider filings, from the source

Company · CIK 0000816761 · SIC 7372 — Services-Prepackaged Software · NYSE

TERADATA CORP /DE/ · TDC

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.9M · 3net −$1.9M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 15, 2026 SForm 4 →Sep 17, 2:12 pm EDTMichael D HutchinsonChief Operating Officer48,077$30.00$1,442,310171,927−21.9%10b5-1
Sep 15, 2026 SForm 4 →Sep 17, 2:09 pm EDTStephen McMillanPresident and CEO, Director10,000$30.02$300,170752,446−1.31%10b5-1
Sep 1, 2026 AForm 4 →Sep 3, 2:15 pm EDTMelissa B FisherDirector963——15,800—
Aug 14, 2026 AForm 4 →Aug 18, 5:31 pm EDTLisa R BacusDirector2,197——86,091—
Aug 14, 2026 AForm 4 →Aug 18, 5:29 pm EDTMelissa B FisherDirector2,197——14,837—
Aug 14, 2026 AForm 4 →Aug 18, 5:27 pm EDTMichael P GianoniDirector2,197——42,510—
Aug 14, 2026 AForm 4 →Aug 18, 5:19 pm EDTTodd McElhattonDirector2,197——28,862—
Aug 14, 2026 AForm 4 →Aug 18, 5:17 pm EDTKimberly K. NelsonDirector2,197——64,172—
Aug 1, 2026 AForm 4 →Aug 4, 5:09 pm EDTBernd LeukertDirector8,330——8,330—
Jun 15, 2026 FForm 4 →Jun 17, 4:30 pm EDTScot Frazier RogersChief Administrative Officer23,513$33.62$790,507216,637—
Jun 8, 2026 SForm 4 →Jun 10, 5:14 pm EDTTimothy C K ChouDirector5,657$33.72$190,75439,210−12.6%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.